There are 2 main tools which enables web access in TFS: TFS WIWA and TFSWA
1) TFS WIWA:
TFS Work Item Web Access (WIWA) is a light version of TSWA which enables you to access TFS Work Items using a web access.
- Download from here
- TFS WA licensing
This tool is mainly for business analysts and project managers, whereas Team Explorer is a better option for developers and testers (it is installed in Visual Studio).
WIWA is free to use and you don't need a CAL license.
Team System Web Access can be installed on your existing Team Foundation Server deployments at no additional charge.
Each user who accesses the TeamPlain web portal must have purchased a TFS Client Access License (CAL) prior to use.